ATE543110T1 - DEVICE FOR COMPENSATING THE IMPEDANCE OF A RESISTANCE MEASUREMENT TOOL - Google Patents

DEVICE FOR COMPENSATING THE IMPEDANCE OF A RESISTANCE MEASUREMENT TOOL

Info

Publication number
ATE543110T1
ATE543110T1 AT08160911T AT08160911T ATE543110T1 AT E543110 T1 ATE543110 T1 AT E543110T1 AT 08160911 T AT08160911 T AT 08160911T AT 08160911 T AT08160911 T AT 08160911T AT E543110 T1 ATE543110 T1 AT E543110T1
Authority
AT
Austria
Prior art keywords
tool body
current
electrode
formation
electrical impedance
Prior art date
Application number
AT08160911T
Other languages
German (de)
Inventor
Richard Bloemenkamp
Original Assignee
Prad Res & Dev Nv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Prad Res & Dev Nv filed Critical Prad Res & Dev Nv
Application granted granted Critical
Publication of ATE543110T1 publication Critical patent/ATE543110T1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/18—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging
    • G01V3/20—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with propagation of electric current
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/18—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging
    • G01V3/20—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with propagation of electric current
    • G01V3/24—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with propagation of electric current using ac
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells

Abstract

An apparatus for making resistivity measurements of an underground formation (6) surrounding a borehole, comprising: - a conductive tool body (4); - an insulating pad (3) mounted on the tool body (4); - a current injector electrode (1) and a current return electrode (2) mounted on a face of the pad (3) so as to be positionable in use, adjacent the wall of the borehole, the current injector (1) and return electrodes (2) being electrically isolated from each other; wherein the tool body (4), pad (3), current injector (1) and current return electrodes (2) are arranged such that, in use: (a) the ratio of the electrical impedance between the current injector electrode (1) and the tool body (4) and the electrical impedance between the current return electrode (2) and the tool body (4) on one hand, and (b) the ratio of the electrical impedance between the current injector electrode (1) and the formation (6), and the electrical impedance between the current return electrode (2) and the formation (6) on the other hand, are substantially equal such that there is substantially no potential difference between the tool body (4) and the formation (6).
AT08160911T 2008-07-22 2008-07-22 DEVICE FOR COMPENSATING THE IMPEDANCE OF A RESISTANCE MEASUREMENT TOOL ATE543110T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08160911A EP2148223B1 (en) 2008-07-22 2008-07-22 Apparatus for balancing impedance of a resistivity measuring tool

Publications (1)

Publication Number Publication Date
ATE543110T1 true ATE543110T1 (en) 2012-02-15

Family

ID=40085428

Family Applications (1)

Application Number Title Priority Date Filing Date
AT08160911T ATE543110T1 (en) 2008-07-22 2008-07-22 DEVICE FOR COMPENSATING THE IMPEDANCE OF A RESISTANCE MEASUREMENT TOOL

Country Status (6)

Country Link
US (2) US8760167B2 (en)
EP (1) EP2148223B1 (en)
AT (1) ATE543110T1 (en)
MX (1) MX2011000813A (en)
MY (1) MY164079A (en)
WO (1) WO2010009800A1 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2148223B1 (en) 2008-07-22 2012-01-25 Schlumberger Holdings Limited Apparatus for balancing impedance of a resistivity measuring tool
US9034176B2 (en) 2009-03-02 2015-05-19 Harris Corporation Radio frequency heating of petroleum ore by particle susceptors
US8120369B2 (en) * 2009-03-02 2012-02-21 Harris Corporation Dielectric characterization of bituminous froth
US8862406B2 (en) 2011-01-11 2014-10-14 Baker Hughes Incorporated Electrical imager operating in oil-based mud and low resistive formation
US8633702B2 (en) 2011-01-18 2014-01-21 Schlumberger Technology Corporation Apparatus and method for actively balancing impedance of a resistivity measuring tool
EP2551701A1 (en) * 2011-06-16 2013-01-30 Services Pétroliers Schlumberger Apparatus and method for actively balancing impedance of a resistivity measuring tool
US10753202B2 (en) * 2012-06-14 2020-08-25 Reeves Wireline Technologies Limited Geological log data processing methods and apparatuses
EP2872740A1 (en) * 2012-07-12 2015-05-20 Halliburton Energy Services, Inc. System and method to improve accuracy of galvanic tool measurements
MX350393B (en) * 2012-07-13 2017-09-06 Halliburton Energy Services Inc Apparatus and method for temperature independent balancing of a tool.
WO2014110328A1 (en) * 2013-01-10 2014-07-17 Services Petroliers Schlumberger Application-specific integrated circuits for downhole applications
US20140375320A1 (en) * 2013-06-19 2014-12-25 Yue Liu Method of leakage current and borehole environment correction for oil based mud imager
EP3359771B1 (en) 2015-12-16 2021-06-02 Halliburton Energy Services, Inc. Electrical impedance tomography using a switchable array
US10753180B2 (en) * 2016-09-19 2020-08-25 Halliburton Energy Services, Inc. Powering downhole components in subsurface formations behind casing
EP3548702A1 (en) * 2016-11-30 2019-10-09 ExxonMobil Upstream Research Company Methods of determining a spatial distribution of an injected tracer material within a subterranean formation
CN106837320A (en) * 2017-01-05 2017-06-13 杭州迅美科技有限公司 A kind of the Electrical imaging measurement apparatus and method of the backflow of pole plate internal emission
US11561319B2 (en) * 2017-10-31 2023-01-24 Halliburton Energy Services, Inc. Software tuning of borehole imagers
GB2590442B (en) * 2019-12-18 2022-06-08 Qinetiq Ltd Imaging system
US11035974B1 (en) 2020-05-13 2021-06-15 Baker Hughes Oilfield Operations Llc Downhole resistivity imaging pad with electrical leakage prevention

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US3509291A (en) * 1967-11-14 1970-04-28 Bell Telephone Labor Inc Method and apparatus to adjust the capacitance of a network to some predetermined value
US3973181A (en) * 1974-12-19 1976-08-03 Schlumberger Technology Corporation High frequency method and apparatus for electrical investigation of subsurface earth formations surrounding a borehole containing an electrically non-conductive fluid
US4594552A (en) * 1983-07-06 1986-06-10 Schlumberger Technology Corporation Logging method and apparatus for measuring earth formation resistivity as well as arm mechanism for the same
DE69832435T2 (en) * 1997-05-13 2006-08-17 Delta Kogyo Co. Ltd. Fahrzeugsitzverstellschienen
FR2793032B1 (en) * 1999-04-28 2001-06-29 Schlumberger Services Petrol METHOD AND APPARATUS FOR DETERMINING THE RESISTIVITY OF A FORMATION CROSSED BY A TUBE WELL
US6603314B1 (en) * 1999-06-23 2003-08-05 Baker Hughes Incorporated Simultaneous current injection for measurement of formation resistance through casing
FR2807524B1 (en) * 2000-04-07 2002-06-28 Schlumberger Services Petrol METHOD AND DEVICE FOR INVESTIGATION OF THE WALL OF A WELLBORE
US7242194B2 (en) 2000-04-07 2007-07-10 Schlumberger Technology Corporation Formation imaging while drilling in non-conductive fluids
US6809521B2 (en) * 2001-04-18 2004-10-26 Baker Hughes Incorporated Apparatus and method for wellbore resistivity measurements in oil-based muds using capacitive coupling
ATE353445T1 (en) * 2002-04-17 2007-02-15 Schlumberger Services Petrol PHASE DISCRIMINATION FOR MICROELECTRICAL MEASUREMENT IN A NON-CONDUCTIVE LIQUID
FR2838829B1 (en) * 2002-04-17 2004-06-04 Schlumberger Services Petrol METHOD FOR DETERMINING THE RESISTIVITY OF A FORMATION CROSSED BY A TUBE WELL
GB2401185B (en) * 2003-05-02 2005-07-13 Schlumberger Holdings An improved shielded apparatus for electrically exploring geological formations through which a borehole passes
US7432716B2 (en) * 2004-11-12 2008-10-07 Baker Hughes Incorporated Method for compensating dielectric attenuation in downhole galvanic measurements
US7256582B2 (en) 2005-04-20 2007-08-14 Baker Hughes Incorporated Method and apparatus for improved current focusing in galvanic resistivity measurement tools for wireline and measurement-while-drilling applications
US8203344B2 (en) * 2006-09-14 2012-06-19 Baker Hughes Incorporated Method and apparatus for resistivity imaging in boreholes with an antenna and two spaced apart electrodes
DE602006015086D1 (en) 2006-12-22 2010-08-05 Schlumberger Technology Bv Probe for the electrical examination of a borehole
EP2148223B1 (en) 2008-07-22 2012-01-25 Schlumberger Holdings Limited Apparatus for balancing impedance of a resistivity measuring tool
US8633702B2 (en) * 2011-01-18 2014-01-21 Schlumberger Technology Corporation Apparatus and method for actively balancing impedance of a resistivity measuring tool

Also Published As

Publication number Publication date
EP2148223A1 (en) 2010-01-27
US20140197839A1 (en) 2014-07-17
US8760167B2 (en) 2014-06-24
MY164079A (en) 2017-11-30
EP2148223B1 (en) 2012-01-25
US9194971B2 (en) 2015-11-24
US20110140702A1 (en) 2011-06-16
MX2011000813A (en) 2011-03-15
WO2010009800A1 (en) 2010-01-28

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